Roof Brace Kit - Ø 125
At a Glance
- Provides robust stability for chimneys extending over 1.5m above the roof
- Adjustable arms from 1.5m to 2.3m for versatile installation
- Dual-layer stainless steel construction (304 outer, 316 inner, both 0.4mm thick)
- Suitable for wood, oil, and gas appliances
- TWPro model is HETAS Approved and CE marked for guaranteed safety
- Insulated with high-density compressed rockwool for enhanced thermal resistance

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: [email protected]
- Info
- Specs
- Install
- FAQs
The Roof Brace Kit - Ø 125 is designed to provide exceptional stability for chimneys extending above the roofline. This kit is essential if your chimney extends 1.5 metres or more above the roof. It is suitable for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.
Constructed with high-grade materials, the outer skin is made from 304-grade stainless steel, while the inner skin is crafted from 316-grade stainless steel. Both are 0.4mm thick for durability and longevity. The insulation is made of compressed rockwool, offering a density of 200kg/m3 for TWPro and 128kg/m3 for KC models, ensuring excellent thermal resistance.
The TWPro variant has a 50mm clearance to combustibles, while the KC version requires a 60mm clearance. TWPro is both HETAS Approved and CE marked, verifying its quality and safety. Installation is straightforward, with parts secured using a Locking Band.
Ensure to maintain the required distance from any combustible materials like wood or plasterboard for safe operation.
SKU: 15-125-123
Technical Specifications | |
---|---|
SKU | 15-125-123 |
Model | Roof Brace Kit - u00d8 125 |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316 Stainless Steel (0.40mm thick) |
Insulation | Compressed Rockwool (200kg/m3 TWPro, 128kg/m3 KC) |
Adjustable Arm Range | 1.5m to 2.3m |
Clearance | TWPro: 50mm, KC: 60mm |
Approvals | HETAS Approved, CE marked |
Usage | Compatible with solid fuel, gas, and oil appliances |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 2nd. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Roof Brace Kit - Ø 125 is a robust and reliable solution for stabilising chimneys that extend above the roof. National Flues is proud to offer this top-quality product to both retail and trade customers across the UK, with our dependable delivery service ensuring you get what you need, when you need it.
The Roof Brace Kit - Ø 125 is designed to stabilise chimneys that extend above the roof, ensuring they remain secure and safe.
National Flues is a trusted supplier of high-quality fireplaces and flues across the UK. We cater to both retail and trade customers, offering competitive pricing and reliable delivery services.
